Engineering Circuit Analysis
9th Edition
ISBN: 9780073545516
Author: Hayt, William H. (william Hart), Jr, Kemmerly, Jack E. (jack Ellsworth), Durbin, Steven M.
Publisher: Mcgraw-hill Education,
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Chapter 7, Problem 43E
To determine
Find the equivalent capacitance between the two points.
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The R-L Circuit: An inductor with an inductance of 2.50 H and a resistance of 7.00 n is connected to the terminals ofa battery with an emf of 6.00 V and an internal resistance of 1.00 n. What is the rate ofincrease of current at the instant when the current is 0.500 A? A) 0.8 A/s B) 0.6 A/s C) 0.4 A/s D) zero E) None of the above.
Give reason :
a) The total resistance in a circuit with parallel resistors increases , if one of the parallel resistors opens .
b) If the inductor is charged it acts as an open circuit.
c) If the capacitor is fully discharged it acts as a short circuit .
The circuit below shows the typical arrangement of a camera flash.
The time taken for the capacitor to become fully charged
The initial rate of discharge of voltage across the 7Ω resistor.
Chapter 7 Solutions
Engineering Circuit Analysis
Ch. 7.1 - Determine the current flowing through a 5 mF...Ch. 7.1 - Prob. 2PCh. 7.1 - Prob. 3PCh. 7.2 - 7.4 The current through a 200 mH inductor is shown...Ch. 7.2 - The current waveform of Fig. 7.14a has equal rise...Ch. 7.2 - Prob. 6PCh. 7.2 - Let L = 25 mH for the inductor of Fig. 7.10. (a)...Ch. 7.3 - Find Ceq for the network of Fig. 7.23. FIGURE...Ch. 7.4 - If vC(t) = 4 cos 105t V in the circuit in Fig....Ch. 7.5 - Derive an expression for vout in terms of vs for...
Ch. 7.6 - Prob. 11PCh. 7 - Making use of the passive sign convention,...Ch. 7 - Prob. 2ECh. 7 - (a) If the voltage waveform depicted in Fig. 7.42...Ch. 7 - A capacitor is constructed from two brass plates,...Ch. 7 - Prob. 5ECh. 7 - Prob. 6ECh. 7 - Design a capacitor whose capacitance can be varied...Ch. 7 - Design a capacitor whose capacitance can be varied...Ch. 7 - Prob. 9ECh. 7 - Assuming the passive sign convention, sketch the...Ch. 7 - Prob. 11ECh. 7 - Prob. 12ECh. 7 - Prob. 13ECh. 7 - Calculate the power dissipated in the 40 resistor...Ch. 7 - Prob. 15ECh. 7 - Design a 30 nH inductor using 28 AWG solid soft...Ch. 7 - Prob. 17ECh. 7 - Prob. 18ECh. 7 - Prob. 19ECh. 7 - Prob. 20ECh. 7 - Calculate vL and iL for each of the circuits...Ch. 7 - The current waveform shown in Fig. 7.14 has a rise...Ch. 7 - Determine the inductor voltage which results from...Ch. 7 - Prob. 24ECh. 7 - The voltage across a 2 H inductor is given by vL =...Ch. 7 - Calculate the energy stored in a 1 nH inductor if...Ch. 7 - Determine the amount of energy stored in a 33 mH...Ch. 7 - Making the assumption that the circuits in Fig....Ch. 7 - Calculate the voltage labeled vx in Fig. 7.52,...Ch. 7 - Prob. 30ECh. 7 - Prob. 31ECh. 7 - Determine an equivalent inductance for the network...Ch. 7 - Using as many 1 nH inductors as you like, design...Ch. 7 - Compute the equivalent capacitance Ceq as labeled...Ch. 7 - Prob. 35ECh. 7 - Prob. 36ECh. 7 - Reduce the circuit depicted in Fig. 7.59 to as few...Ch. 7 - Refer to the network shown in Fig. 7.60 and find...Ch. 7 - Prob. 39ECh. 7 - Prob. 40ECh. 7 - Prob. 41ECh. 7 - Prob. 42ECh. 7 - Prob. 43ECh. 7 - Prob. 44ECh. 7 - Prob. 45ECh. 7 - Prob. 46ECh. 7 - Prob. 47ECh. 7 - Let vs = 100e80t V with no initial energy stored...Ch. 7 - Prob. 49ECh. 7 - Prob. 50ECh. 7 - Interchange the location of R1 and Cf in the...Ch. 7 - For the integrating amplifier circuit of Fig....Ch. 7 - Prob. 53ECh. 7 - For the circuit shown in Fig. 7.73, assume no...Ch. 7 - A new piece of equipment designed to make crystals...Ch. 7 - An altitude sensor on a weather balloon provides a...Ch. 7 - One problem satellites face is exposure to...Ch. 7 - The output of a velocity sensor attached to a...Ch. 7 - A floating sensor in a certain fuel tank is...Ch. 7 - (a) If Is = 3 sin t A, draw the exact dual of the...Ch. 7 - Draw the exact dual of the simple circuit shown in...Ch. 7 - (a) Draw the exact dual of the simple circuit...Ch. 7 - (a) Draw the exact dual of the simple circuit...Ch. 7 - Prob. 64ECh. 7 - Prob. 65ECh. 7 - Prob. 66ECh. 7 - Prob. 67ECh. 7 - Prob. 68ECh. 7 - Prob. 69ECh. 7 - Prob. 70ECh. 7 - For the circuit of Fig. 7.28, (a) sketch vout over...Ch. 7 - (a) Sketch the output function vout of the...Ch. 7 - For the circuit of Fig. 7.72, (a) sketch vout over...
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- Inductance is the property of an inductor that produces an opposition to any change in current. Select one: O True O Falsearrow_forwardDetermine the current 7(1) in an RLC-circuit with resistance R = 802, %3D inductance L = 10 H ¸ capacitance C = 0.004 F and voltage E = 240.5 sin 10t V. %3Darrow_forwardA dc constant voltage source feeds a resistance of 2,000 kΩ in series with a 5µF capacitor. Find the time taken for the capacitor when the charge retained will be decayed to 50% of the initial value, the voltage sourcing being short circuited. Ans 11arrow_forward
- 2. Suppose you want a capacitor bank with a total capacitance of 0.750 F and you possess numerous 1.50 mF capacitors. What is the smallest number you could hook together to achieve your goal, and how would you connect them?arrow_forwardb) What is the current at t = 0.008 s? (In [A]) c) What is the voltage at t = 0.008 s? (in [V]) Hint: What relationships exist between voltage and current when the current in an inductor is interrupted?arrow_forward7. 6.3.2 Find the total capacitance Cr in the network given. All capacitors are in microfarads. CT 6 12 F 6 3 16 A 00arrow_forward
- Compute the equivalent capacitance Ceq as labeled in Fig. 7.55. HE HE 7 F 4 F Ceq 5 F FIGURE 7.55 1 F H6 8 F 5 F HE 2 F 2 F HE 12 Farrow_forwardQuestion 31 If each capacitor has a value of 1 F, determine the equivalent capacitance of the network shown in Fig. 7.53. FIGURE 7.53arrow_forward1. A cardiac defibrillator is used to shock a heart that is beating erratically. The capacitor is charged to 6.0kV in this device and stores 1800J of energy. What is the capacitance?arrow_forward
- What is the function of the holding capacitor in the circuit of Fig. 7?arrow_forward1-A Pacemaker is a device that is implanted in the body and it helps to control the heartbeat by preventing the heart from beating too slowly. A pacemaker that is connected to a battery with a voltage of 9.0 V and has a capacitor with a capacitance of 110 µF is designed to deliver 5 pulses every 4 seconds. The pacemaker will deliver a pulse to the patients body every time its' capacitor is charged to 0.25 V. What resistance should the pacemaker have to achieve the desired pulse delivery (5 pulse every 4 second). 2-For the circuit below find the current in each resistor using the kirchoff method ww 3.9 1 12 V 1.20 9.8 Ω A ww 6.70 9.0 V Barrow_forwardA 767 uF capacitor has an initial voltage, v(0) = 2 V. If the current flowing through the capacitor is i(t) = 11 mA, what is the voltage v(t) across the capacitor, at time t= 40ms? Enter your answer to 3 significant figures.arrow_forward
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